1 2 Previous Next 21 Replies Latest reply on May 14, 2015 2:35 PM by MikePT

    Bluetooth problem

    mrnickg

      How do I listen to my Iphone music thru bluetooth on my pc speakers? ! The Intel Bluetooth program will not connect to all the services needed.

        • 1. Re: Bluetooth problem
          Muthu Kumar

          Hi

           

          This is not supported by Microsoft bluetooth stack on Win 8 and later. You will only be abel to stream
          audio from your PC to other devices like speakers, headsets and so on.

           

          ----

          Disclaimer: Not speaking for my employer

          • 2. Re: Bluetooth problem
            mrnickg

            I am using windows 8.1 and it worked with my old wifi / Bluetooth card before I installed the intel card and drivers. I think intel has a problem with it's Bluetooth drivers because its not allowing all the available services to function. The iPhone connects as well as all the other devices, but it will not stream as it did before with the Dell 1703 card.

            • 3. Re: Bluetooth problem
              Muthu Kumar

              Please trust me. The BT profile called A2DP SINK is not supported by Microsoft on Windows 8 and beyond. This means PC can't receive audio
              stream from another device (A2DP SRC) and play it over its speakers.

              1 of 1 people found this helpful
              • 4. Re: Bluetooth problem
                mrnickg

                I'm sorry but you are 100% wrong. Windows 8 and 8.1 both supported that Bluetooth feature. It's the bluetooth adapter and it's driver that will not allow it to function. Intel's Bluetooth drivers need to be upgraded.

                • 5. Re: Bluetooth problem
                  Muthu Kumar

                  Hi, You may have used Bluetooth stack from different vendor who might have supplemented MS Bluetooth stack with their implementation
                  of this particular audio feature.

                   

                  Microsoft did not support Bluetooth Audio in Windows 7. Intel Bluetooth software adds that feature (both src and sink). From Windows 8, Microsoft provides
                  native support for BT audio streaming support (only).

                   

                  You can read more about MS BT support here

                   

                  http://msdn.microsoft.com/en-us/library/windows/hardware/dn133844(v=vs.85).aspx

                   

                  --

                  Disclaimer: Not speaking for my employer

                  • 6. Re: Bluetooth problem
                    GM95380

                    Hi, I'm facing the same problem as the initial submitter mrnickg.

                    I'm unable to listen to my iPod music through Bluetooth on my PC speakers.

                    I have a Dell Inspiron 17R 5737 with Windows 8.1 and the Intel(R) Wireless-N 7260 adapter ( with BT 4.0) level 16.6.0.8.

                    Reading the Microsoft documentation ( General Bluetooth Support in Windows (Windows Drivers) it is stated:

                    "Windows Support for Bluetooth Versions

                    What’s new in Windows 8.1?

                    Windows 8.1 includes the following enhancements to the Bluetooth stack and related software:

                    • Inbox radio management control for Bluetooth version 4.0 radios.
                    • Windows Runtime API support for RFCOMM and GATT protocol access.

                    What’s new in Windows 8?

                    Windows 8 includes the following enhancements to the Bluetooth stack and related software:

                    • Support for Bluetooth version 4.0:
                      • Bluetooth Low Energy support allows Windows to connect with Bluetooth Smart peripherals.
                      • eL2CAP enables enhanced re-transmission and flow control for profiles that require this functionality.
                    • An extensible transport model allowing support for Bluetooth radios on non-USB buses
                    • Support for the HFP, A2DP, and AVRCP Profiles"

                    In the Architectural Overview (Architectural Overview (Windows Drivers)), it is stated:

                    "

                    This topic presents an architectural overview of the Windows 8.1 support for rerouting audio data to bypass the Bluetooth host controller interface (HCI).

                    Starting with Windows 8.1, the Microsoft operating system has been updated to be compatible with low power system-on-a-chip (SoC) design solutions. The new Windows support is compatible with either Intel-based or ARM-based SoC designs. These new low-power devices will be optimized for “always on” scenarios, so low battery consumption will be a key factor for success.

                      SoC architectures use the Universal Asynchronous Receiver/Transmitter (UART) transport mode to transmit data to and from the Bluetooth host controller.

                    Because UARTs cannot provide time sensitive data transmission, a synchronous connection oriented (SCO) bypass channel must be implemented in addition to a UART, to transfer audio data via I2S or some other connection between the audio codec and the Bluetooth radio. This means that audio data must be rerouted to bypass the Bluetooth HCI. The Bluetooth HCI which would normally be used on PCs to transmit audio data.

                    It is important to note that this feature is simply offloading the same functionality that exists in versions of Windows prior to Windows 8.1, so from a user perspective there are no use cases that are different between the Bluetooth hands-free profile (HFP) on SoC and Bluetooth HFP in Windows on a PC or laptop."

                    And after the diagram:

                    "Note that this Windows feature does not support bypass audio streaming using advanced audio distribution profile (A2DP). Windows 8 provides a separate A2DP profile driver that completely supports audio functionality through the standard Bluetooth HCI without requiring any additional audio drivers."

                    .

                    To summarize: the BT architecture in Windows 8.1 process has changed from the previous Windows versions.

                    And the A2DP is still supported in Windows 8.1 since it was brought by Windows 8. As a consequence, when an iPhone/iPod is BT appaired to the PC its speakers should be able to play their music.

                    That behaviour was true on my professional laptop under Windows 7 and the same iPod.

                    I expect that you would be able to restore such expected BT behaviour on Windows 8.1.

                    Thanks for your action. Best regards. Gilbert.

                    • 7. Re: Bluetooth problem
                      mrnickg

                      Thank you, Gilbert. I could not have said it better. Hopefully Intel will update their driver.

                      • 8. Re: Bluetooth problem
                        Muthu Kumar
                        And the A2DP is still supported in Windows 8.1 since it was brought by Windows 8. As a consequence, when an iPhone/iPod is BT appaired to the PC its speakers should be able to play their music.

                        As I previously mentioned, this particular A2DP role (sink) is not supported by Microsoft.  Perhaps Microsoft will consider adding support in future releases if you

                        provide them feedback through Windows 8.1 forums.

                        • 9. Re: Bluetooth problem
                          GM95380

                          Hello Muthu,

                          I contacted the MS Windows support this afternoon. They suggested me to open a discussion Stream in their MS Community site.

                          Here's the link to the discussion I opened a few minutes ago:

                           

                          About Bluetooth A2DP SINK and SRC features - Microsoft Community

                          • 10. Re: Bluetooth problem
                            mrnickg

                            The Bluetooth A2DP issue is also appearing with my Samsung Tab 2. It also steamed with my Dell wifi / Bluetooth card and will not work with the new Intel 7260 AC Bluetooth driver. The only common device here is the Intel card and drivers.

                            What is the next step if any by Intel???

                            • 11. Re: Bluetooth problem
                              Muthu Kumar

                              @mrnickg - As I clarified before, this feature has to supported by Microsoft. This is not issue with specific devices. Windows 8 and later PC can't receive audio stream via BT and play over its speakers.

                              • 12. Re: Bluetooth problem
                                joe_intel

                                You will only be able to stream audio from your PC to other devices like speakers, headsets or similar. The Bluetooth profile called A2DP SINK is not supported by Microsoft* on Windows* 8/8.1. This means the PC cannot receive an audio stream from another device (A2DP SRC) and play it over its speakers.

                                • 13. Re: Bluetooth problem
                                  GM95380

                                  Hello Joe,

                                  Intel's position is very clear for me.

                                  What is your feeling about the discussion I had with Microsoft people: The link:  About Bluetooth A2DP SINK and SRC features - Microsoft Community

                                  You say:  A2DP SINK is not supported by Microsoft.

                                  Microsoft says: "Microsoft allows implementation in Windows 8.1 yet the OEM device maker has to produce compatible hardware and drivers."

                                  And according the discussion I had with Dell people, they don't provide such "driver".

                                  Is there some way to bypass such situation ?

                                  I'm fresh retired. On my professional LENOVO laptop under Windows 7 its speakers were able to play the audio streamed from an A2DP SRC device.  

                                  • 14. Re: Bluetooth problem
                                    mrnickg

                                    It's funny, I have a Dell XPS 8500. Running Windows 8.1 with a Dell 1703 WIFI / Bluetoooth card. I play music from my iPhone to my PC speakers and have from day one. When I replace the Dell card with the Intel 2760 AC card, my Bluetooth will not play music with my iPhone over the pc speakers and the driver does not appear to have that feature. So I have removed the card  until Intel does something about this problem. It's not a Microsoft issue it's an Intel driver issue.

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